Egg-boiler.



No. 878,866. PATENTED FEB. 11,1908.

H. H. GHBSBROUGH.

EGG BOILER. APPLIOATION FILED 8EPT.21.1907.'

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, fNVENTole No. 878,866. PATE'NTED FEB. 11, 1908.

H. H; OHESBROUGH.

EGG BOILER.

APPLICATION FILED 8EPT.21.1907.

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' UNITED STATES HORACE HASTINGS GHESBROUGH, OF SOUTHPARK, WASHINGTON.

EGG-BOILER.

Specification of Letters Patent.

Patented Feb. 11,1908.

Application filed September 21. 1907. Serial No. 393-965- To all whom it may concern:

Be it known that I, HORACE HAS INGS CHEsBRoUGH, a citizen of the United States of America, residing at Southpark, in the county of King and Stateof Washington, have invented certain new and useful Imrovements in Egg-Boilers, of which the following is a s eciiication, reference being had therein to t e accompanying drawing.

My invention relates to improvements in egg boilers, and has particular relation to devices of this character, in which a time ele ment is involved.

The present invention is an improvement on the structure shown and described in Letters Patent granted to me May 29, 1906, No. 821,857, in which there ispre'sented a water containing chamber within which the e gs, carried by a springactuated pivota lymounted top, are inserted into the water within the chamber, the length of time the eggs remain within the water being controlled by clock work carried within a supplemental chamber of the device. These same general principles are contained in the present invention, but the manner in which they are put into effect is radipally changed, so that an improved construction is provided so far as respects the appearance, the operation, the durability, and cost of manufacture of the device, these features forming some of the objects of my invention, other objects being hereinafter set forth as the invention is further disclosed.

To these and other ends, my invention consists in the improved construction and combination of parts hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims.

In the drawings, in which similar reference characters indicate similar parts throughout the several v1ews,-F1gure 1 1s a perspective view of my device, the egg-carrying lid or top being shown in its closed position. Fig'. 2 1s a vertical longitudinal sectional view of the device showing, in elevation, the mech anism for releasing the egg-carrier, the section being taken on line 22 of Fig. 3. Fig. 3 is a horizontal sectional view taken on line Fig. 4 is a detailed view showing the bell-crank lever with the balancewheel controlling detent carried thereby.

10 designates a rece tacle having side Walls 11, end Walls 12 an a bottom 13, these parts being arranged to form a rectangular I structure adapted to contain the egg-boiling chamber and an auxiliary chamber within which the releasing. mechanism is located,

' the bottom 13, and is formed by a plate 15 slidably mounted in grooves 16, this articular construction being provided for t e purpose of ermitting access to the interior of the sma ler auxiliary chamber, and the particular location of said plate relatively to the plane of the bottom 13 serving to form an open s ace below said chamber in order that the in effect of the heat from the heating element may not be placed on said auxiliaryv chamber. Said auxiliary chamber is per manently closed at its to by means of a top plate 17, said plate being coated on the plane of the top of the side walls 11. The larger or boiling chamber is closed at its top by a lid (hereinafter referred to as the egg carrier) 18, said lid being pivotally mounted in the plane of one of the end walls 12, and being formed with downwardly turned flanges 19, which, on the sides, are adapted to project over the top edges of the side walls 11, While the flange 19 at the front of the lid, is adapted to extend into the boiling chamber adjacent to the plate 14. Secured on the side flanges 19 and projecting forwardly from the front of the lid, is a frame 20 comprising two parallel rod-shaped portions 21 secured respectively to the side flanges 19, said portions 21 being connected together at a point spaced from the front flange 19,'said connection being so located as, when the lid is in its closed position, to be positioned in front of but adjacent to the end wall at the front of the receptacle. Said connection, designated as 22, is formed with a downwardly-extending U-shaped portion 23, for a purpose hereinafter set forth.

24 designates a rod extending across the boiling chamber adjacent to the oint of pivotal connection of the lid 18, ancl on said rod is located a coiled spring 25, one end of which extends into the boiling chamber and I ing located on opposite sides of said segment contacts with one of the end walls thereof, while the other end of said spring is adapted to contact with the under surface of the lid '18. This construction places a spring tension on the lid as the latter is being closed, so that, when the lid is released, as hereinafter described, it will be automatically moved on its pivot to its open position.

Secured on the under surface of the lid 18 are suitable egg-carrying plates 26, adapted to receive and hold the eggs independently,

the eggs being so located relative to the plane of the lid that when the latter is closed, the eggs will be positioned adjacent the bottom of the boiling chamber. As the lid is thrown open by the spring 25, the eggs will obviously be carried out of the boiling chamber, inasmuch as the plates 26 are carried solely by the lid.

As heretofore explained, the lid 18 is nor mally in an open position, retained therein by the spring 25, in which position the eggs, when placed in the plates 26 are entirely outside of the boiling chamber. In order that the eggs may be laced and retained in the boiling chamber or a predetermined length of time, means operatively connected with a suitable clock work mechanism are provided for positively retaining the lid in its closed position, said means being so arranged that, when the redetermined time has elapsed, the lid Wllf bG released and then carried to its normal position. by the spring 25. The mechanism comprising said means will now be described.

Mounted on suitable studs 27 located within the auxiliary chamber and secured to one of the side walls thereof is a clock work frame 28 in which frame are mounted the necessary elements to produce a pivotal movement of an arbor 29 mounted within the frame 28, said movement being controlled by suitable escapement mechanism, these parts being similar or equivalent to the usual clock work structure having an arbor which makes one complete revolution every sixty minutes, the mechanism being operated by a main spring 30 adapted to be wound by a suitable'key 31 located on the outer side of the receptacle. One end of the arbor 29 extends through the side walls of the receptacle, and is provided with an arm or finger, the other end of which is adapted to traverse an indicating segment 33 secured, on the outer face of the side wall, said segment being provided with indicating marks suitably distanced apart to correspond with the space through which the end of the arm or finger 32 passes during the minute or subdivisions or multiples thereof. The segment is preferably spaced from the side wall by means of spacing members 34 to provide a space within which a guard carried by the arm '32 'extends, said guard and the end of the arm beretain the lid in such closed position.

to prevent liability of said arm being accidentally bent or displaced.

The opposite end of the arbor 29 is provided with a quadrant 36, the outer edge of which is in the arc of a circle. In view of the fact that said quadrant and the arm 32 are both secured on the arbor 29, their movements will be in unison with those of the arbor, therefore the length of the arc of the quadrant must be suflicient to correspond I to the length of a similar arc traversed by the arm 32.

37 designates a lever pivotally mounted on the framework 28, said lever having one of its ends bent laterally as at 38, said bent end extending into the plane of the arc of the quadrant. The opposite end of said lever 37 is provided with a pivotally mounted retaining catch, 39 the latter extending through an opening in the end wall, and projecting into the path through which the U-shaped por tion 23 passes when the lid is being closed,

said catch being adapted to extend over the lower connecting part of the U-shaped portion when the lid is in its closed position, Ito T 1e catch 39 is normally retained in its projecting position by a spring 40, one end of which is connected to a laterally projecting portion of the catch in rear of the point of pivotal connection thereof, the other end of the spring being connected to a laterally-extending projection 41 carried by the lever 37. While the pivotal connection of the catch 39 permits it to move freely in one direction against the tension of the spring 40, a pivotal movement in the opposite direction is prevented by a lug or projection 42 which extends laterally of said catch and is adapted to abut against one edge of the lever 37, said projection being so positioned that the catch 39 will yield inwardly as the Ushaped portion 23 passes to its retaining position, but which will prevent such yielding movement after the portion 23 has been engaged. by the catch, at which time, said lever 37 and catch 39 are held substantially unitary in form, by reason of the engagement of lug 42 and lever 37 under the action of the tension exerted by the spring 25, said tension causing the lever 37 to move on its pivot until contact is made by the end 38 with the arc of the quadrant 36, this construction positively retaining the catch 39 in its engaging position, and retaining the lid closed, it being assumed that the quadrant has been moved to such a position that the end 38 is brought into contact with some portion of the arc thereof. When,

however, the quadrant has moved (by reason spring is permitted by reason of the fact that no opposing structure at the opposite end of the lever is presented against the pressure provided by the spring 25, so that lever 37 is permitted to move on its pivot a distance sufficient to enable the catch 39 to pass out of the path of travel of the U-shaped portion 23, thereby permitting the lid to pass to its normal position.

As heretofore stated, the clock mechanism is under the action of a main spring, and therefore the tendency of the mechanism is to continue the operation of the clock mechanism until the main spring is run down. Obviously, this is not required since the clock mechanism need only operate during the time it is intended that the boiling operation should take place, and hence it is desirable to limit the movement of the clock mechanism to such period. This mechanism I will now describe.

Pivotally mounted on the frame 28 is a bell-crank lever 43, one arm of which extends to a point adjacent to the path of movement of a laterally-projecting pin 44 carried by the balance wheel 45, of the clock mechanism,

said arm having at its end a pivotally .mounted and spring supported detent 46 having one of its faces slightly recessed to receive the pin 44 when said detent is moved into the path of travel of said pin, said detent preventing further movement of the pin, and consequently of the balance wheel, while in such position. To permit said detent to pass to this position, I provide a yielding movement therefor in one direction, said detent being spring-supported to permit of that movement and to insure that no binding effect of the detent and pin may result, the detent is formed with a rearwardly-extending arm which, when brought into contact with the pin, will cause the latter to recede until the pin has passed from out of contact with said arm, whereupon it (the pin) will pass into the recessed portion of the detent and rest therein. The opposing arm of the bell crank lever 43 is connected by a link 47, to a pivotally-mounted lever 48 carried by the frame, said lever having its forwardly extending portion bent laterally to provide an extended U-shaped end portion 49, said portion being positioned adjacent to the quadrant 36, the U-shaped portion being provided to permit of the free movement of said lever 48 in a direction which carries it beyond the plane of the arc of said quadrant. The lever 48 is held under tension by means of a spring 50, which tends to move said lever 48 pivotally in a direction to move the bellcrank lever 43 in such directionthat the detent 46 will pass out of the path of movement of the pin 44. fact that said pin normally rests within a recessed portion of the detent, causes said detent to carry with it the pin 44, until the This movement, owing to the v in the boiling chamber.

latter becomes free from its connection with the detent, this movement of the pin placing the balance wheel under a tension, which,

upon release of the pin starts the operative movement of the clock work. This'move ment of the lever 48, however, is limited by the contact of the U-shaped portion 49 with the bent end 38 of the lever 37, the arrangement of parts being such that when said bent end 38 is in contact with the are of the quadrant, and the U-shaped portion is in contact with the bent end, the bell-crank lever 43 will have moved a sufficient distance to reuntil the quadrant has passed to a position where the engagement of the end 38 and the arc of the quadrant is broken, said bent end passes inward under the action of the spring 25, as heretofore explained, thereby carrying the U-shaped portion 23 out of the plane of the catch 39. When said catch is released, a spring 51 connected to the lug 4'1 and to a similar lug carried by an arm 52 mounted on the frame 28, which spring is of greater power than the spring 50, operates to carry the lever 37 in an opposite direction, which movement, by reason of the contact of the end 38 and the U-shaped portion 49 rocks the lever 48 in a direction which will move the bellcrank lever to the position where the detent prevents movement of the balance wheel through its contact with the pin 44. It will now be understood that, only when the lever 37 isheld under the'tension of the spring 25, at which time the bent end 38 is in contact with the arc of the quadrant, is the spring permitted to move the lever 48 to release the detent from its engagement with the pin 44. At all other times, the spring 51 will act to retain the lever 48 in a position where engagement of the detent and pin is had.

53 designates a pivotally mounted catch secured on the outer surface of the end and adapted to be passed over the U-shaped portion 23, said catch having no connection with any of the operative parts of the releasing mechanism. Said catch has its retaining edge so positioned that when in position to retain the lid closed, the U-shaped portion 23 will be out of contact with the catch 39, and hence the operating parts are freed from the tension of the spring 25.

For the'purpose of readily carrying the device about a handle 54 is provided.

When it is desired to boil the eggs, the boiling chamber is filled with water which is heated, after which the eggs are placed into the plates 26 and the lid closed as heretofore explained, the arm 32 having been moved away from the zero mark to the mark corresponding with the number of minutes which it is intended the eggs should remain While this arm set- {a Bas es ting movement may take place after the closure of the lid, it is preferred that it be set before the lid is closed, for the reason that unless moved from the zero mark before the lid is closed, the catch 39 will not be so posi-- when the tension has been placed on the catch 39 and the movement of the arbor causes the arm 32, as well as the quadrant, to

be moved in the direction of the zero mark,

When the latter has been reached, which is at the time that the quadrant and the end 38 pass out of engagement with each other, the catch 39 is released and the lid permitted to The advantages of the construction herein shown and of the operation resulting therefrom have been pointed out in connection with the description of the parts, and it is not believed to be necessary to point them out in greater detail.

Having thus fully described my invention, what I claim as new is 1. In an egg-boiler, an egg boiling chamber, a pivoted closure therefor adapted to carry the eggs, tension mechanism, for normally retaining said closure in its open position, a normal inoperative clock mechanism, including a balance wheel, said wheel in operative position being free from tension,

"and means for operatively connecting said closure and sa1d clock mechanism to retain carry the eggs,- tension mechanism, for normally retaining said closure in its open position, a normal inoperative clock mechanism including a balance wheel, said wheel in operative position being free from tension, and means for operatively connecting said closure and said clock mechanism to retain said closure in a closed position, said connecting means including a clock-movement starting and stopping mechanism normally held by the closure-engaging means in position to render the balance wheel inactive, said starting and stopping mechanism being released only upon the engagement of the closure and said connecting means, the releasing movement of the starting and sto ping mechanism placing the balance Wheel under a start ing tension, means being provided for controlling the length of time said operative connection is had.

3. In an egg-boiler, an egg-boiling chamber, a pivoted closure therefor adapted to carry the eggs, tension mechanism for normally retaining said closure in its open position, a normal inoperative clock mechanism including a balance wheel, said wheel in operative position being free from tension, means for operatively connecting said closure and said clock mechanism to retain said closure in a closed position, said connecting means including a clock-movement starting and stopping mechanism normally held by the closure-engaging means in position to render the balance wheel inactive, said starting and stopping mechanism being released only upon the engagement of the closure and said connecting means, the releasing movement of the starting and stopping mechanism placing the balance wheel under a starting tension, and independent means located in the path of movement of said connections, for controlling the period of time the operative gnglagement of the closure and mechanism is 4. In an egg-boiler, an egg-boiling chamber, a pivoted closure therefor adapted to carry the eggs, tension mechanism for normally retaining said closure in its open position, a normal inoperative clock mechanism including a balance wheel, said wheel in operative position being free from tension, means for operatively connecting said closure and said clock mechanism to retain said closure in a closed position, said connecting means including a clock-movement starting and stopping mechanism normally held by the closure-engaging means in position to render the balance wheel inactive, said starting and stopping mechanism being released only upon the engagement of the closure and said connecting means, the releasing movement of the starting and stopping mechanism placing the balance wheel under a starting tension, and independent means located in the path of movement of said connections, for controlling the period of time the operative engagement of the closure and mechanism is had, said latter means being movable into and out of said path, and mounted to be movable with said clock mechanism.

-5. In an egg boiler, an egg boilingtchamber,a pivoted closure therefor adapted to carry the eggs, tension mechanism for normally retaining said closure in its open position, a clock mechanism including a balance wheel, said wheel in operative position being free from tension, means for starting and stopping said clock mechanism, said means normally retaining said balance Wheel inoperative, and independent connections lying in the path of movement of said closure for controlling the movement of said means, said connections being operative to release said means only when under the tension of the closure, the releasing movement of said means placing the balance Wheel under a starting tension.

6. In an egg boiler, an egg-boiling chamber, a pivoted closure therefor adapted to carry the eggs, tension mechanism for normally retaining said closure in its open position, a clock mechanism including a balance Wheel, said Wheel in operative position being free from tension, means for starting and stopping said clock mechanism, said means normally retaining balance Wheel inactive, independent movement-controlling connections extending into the path of movement of said closure, said means being operative to release said means only When under the tension of the closure, the releasing movement of said means placing the balance Wheel under a starting tension, and a clock-mechanism operated means movable into and out of the path of movement of said connections.

7. In an egg boiler, an egg-boiling chamber, a pivoted closure therefor adapted to carry thev eggs, tension mechanism for normally retaining said, closure in its open position, a concealed clock mechanism including a balance Wheel, said Wheel in operative position being free from tension, means for starting and stopping said clock mechanism, said means normally retaining said clock mechanism inactive, independent movement-controlling connections extending into the path of movement of said closure, said means being operative to release said means only When under the tension of the closure, the

releasing movement of said means placing I the balance Wheel under a starting tension, and clock-mechanism operated means movable into and out of the path of movement of said connections, said latter means having a visual setting device.

In testimony whereof I ai'fiX my signature in the presence of tWo Witnesses.

HORACE HASTINGS CHESBROUGH.

Witnesses:

HORACE S. APPLEToN, HARRY N. CHEsBRoUGH. 

